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A semiautomatic image analyzer for cell counts in monolayers. I. Construction, experimental procedure, and precision
1Institute of Hygiene, University of Copenhagen, Denmark.
Journal of Toxicology and Environmental Health
|January 1, 1989
Summary
This study introduces a low-cost image analyzer for counting total and viable cells using immunofluorescence. The system offers precise cell enumeration for toxicological testing within 1.5 hours.
Area of Science:
- Cell Biology
- Biotechnology
- Toxicology
Background:
- Accurate cell counting is crucial for biological research and toxicological assessments.
- Existing methods can be costly, complex, or time-consuming.
- There is a need for accessible and efficient cell analysis tools.
Purpose of the Study:
- To present a simple, flexible, and low-cost image analyzer system.
- To determine the total and viable cell numbers in nonconfluent cell monolayers.
- To evaluate the system's precision and efficiency for in vitro toxicological testing.
Main Methods:
- Utilized an immunofluorescence method with fluorescein diacetate to identify viable cells.
- Employed rabbit alveolar macrophages as the cell model.
- Analyzed various counting procedures and assessed method precision.
- Developed a semiautomatic counting protocol.
Main Results:
- The image analyzer system accurately determines total and viable cell counts.
- Viable cells were identified using fluorescein diacetate immunofluorescence.
- The method demonstrated high precision with a coefficient of variation of 5%.
- Semiautomatic counting procedures were completed within 1.5 hours.
Conclusions:
- The developed image analyzer system is a cost-effective and efficient tool for cell enumeration.
- It provides precise and rapid results suitable for short-term in vitro toxicological studies.
- The system enhances accessibility for cell-based assays requiring accurate cell counting.